Hand truck extension



FIG. 1 is a perspective view of the hand truck extension.

FIG. 2 is a top plan view of the invention.

FIG. 3 is a front plan elevation view of the invention.

FIG. 4 is a rear plan elevation view of the invention.

FIG. 5 is a bottom plan view of the invention; and,

FIG. 6 is a right side elevation view of the invention with the left side being a mirror image thereof. 

The ornamental design for a hand truck extension, as shown and described. 